﻿// Copyright 2007-2014 Chris Patterson
//  
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
// this file except in compliance with the License. You may obtain a copy of the 
// License at 
// 
//     http://www.apache.org/licenses/LICENSE-2.0 
// 
// Unless required by applicable law or agreed to in writing, software distributed
// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR 
// CONDITIONS OF ANY KIND, either express or implied. See the License for the 
// specific language governing permissions and limitations under the License.
namespace MassTransit.Courier.Extensions
{
    using System.Collections.Generic;


    static class LinqExtensions
    {
        internal static IEnumerable<T> SkipLast<T>(this IEnumerable<T> source)
        {
            using (IEnumerator<T> enumerator = source.GetEnumerator())
            {
                if (enumerator.MoveNext())
                {
                    T element = enumerator.Current;

                    while (enumerator.MoveNext())
                    {
                        yield return element;
                        element = enumerator.Current;
                    }
                }
            }
        }
    }
}